Dec 9, 2013 4:00pm PST
washington at national cathedral on wednesday vice president biden will deliver remarks. >> vice president biden honored nelson mandela's memory by signing a condolence book. wrote through his willingness to forgive he inspired us and challenged us to do better. three decades ago then senator biden travelled to south africa. the two men did meet in washington after the release in 19990. >> there will be a civic memorial in san francisco on wednesday. today mayor lee opened a book for the public to sign and ordered flags on city properties be known half staff the day of his burial and later in this newscast. stay with us if you can. you're going to meet the boys choir who will sing during the memorial for mandela in washington, d.c. >> there is new information ahead of public hearings tomorrow. investigators expected to reveal pilots misunderstood how the controls punks functioned. >> the law requires dna samples to be taken from all suspects arrested for felonies. american civil liberties union saying the law is un-constitutional. the state claims it helps solve cold cases the u.